Battery Pack Lock Seat Assembly for Self-Locking Bracket Mounting
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Solution Overview
Problem
Existing lock mechanisms for battery packs in electric vehicles are complex and cumbersome, affecting the efficiency and stability of locking and unlocking processes.
Innovation Solution
A lock mechanism with a lock seat and movable part on the bracket's side wall, allowing the battery pack's extension end to enter a horizontal opening and fall into a locking space, providing reliable fixation and simplified operations through a rotating shaft and elastomer-assisted self-locking mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional multi-point locking mechanisms are used to secure the battery pack, then locking reliability is improved, but device complexity and operational complexity increase
Solution Approach 1:
The locking mechanism is divided into independent locking units, each comprising a locking bolt, locking groove, and elastic piece. Multiple simple locking units replace a complex integrated locking system, achieving reliable multi-point locking while maintaining structural simplicity and ease of manufacture
Solution Approach 2:
The elastic piece automatically pushes the locking bolt to engage with the locking groove without requiring external actuation for each locking point. The system self-locks when the battery pack is installed, eliminating the need for complex control mechanisms while ensuring reliable locking
2Reliability
If traditional locking mechanisms with multiple components are used, then locking stability is improved, but ease of operation deteriorates due to cumbersome locking and unlocking processes
Solution Approach 1:
Multiple locking functions are merged into a single integrated lock mechanism that simultaneously engages all locking points when the battery pack is installed. The locking and unlocking operations are consolidated into single actions, improving ease of operation while maintaining stable locking through multiple engagement points
Solution Approach 2:
The elastic piece is pre-loaded to automatically push the locking bolt into the locking groove as soon as the battery pack is installed. This preliminary self-locking action occurs without requiring additional operational steps, simplifying the locking process while ensuring stable engagement
3Reliability
If complex locking mechanisms are used to prevent battery pack displacement, then locking reliability is improved, but productivity deteriorates due to time-consuming locking and unlocking operations
Solution Approach 1:
The locking system uses multiple independent but simple locking units that can be manufactured and assembled quickly. Each unit is straightforward in design, enabling rapid production and installation while providing reliable multi-point locking to secure the battery pack efficiently
Solution Approach 2:
The automatic self-locking feature eliminates the need for manual intervention or complex control sequences during locking. The elastic piece automatically engages the locking bolts with the grooves, significantly reducing locking time and improving productivity while maintaining reliable fixation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces the complexity of installing and fixing battery packs, enhances locking stability and safety, and improves the efficiency of locking and unlocking processes.
Implementation Method 1
elastomer-assisted self-locking mechanism
Data Source
AI summary
Disclosed are a lock mechanism for a battery pack, a bracket assembly, a battery pack, an electric vehicle and a lock method for a battery pack. The lock mechanism comprises a first unit and a second unit, which are respectively arranged on a side wall of the bracket and a side wall of the battery pack. The first unit comprises a lock seat, which is provided with a locking space; the second unit comprises an extension end; when the battery pack is placed with respect to the bracket, the locking space bears and locks the extension end; and the lock mechanism is provided, above the locking space, with an opening, which faces the battery pack and approaches the battery pack in a horizontal direction, such that the extension end enters the opening in a horizontal direction facing the side wall of the bracket and falls into the locking space.